Changed some structure of classes Handler and MainWindow. Also added the line "My IP" on the main window.

src/kernel/handler.cpp

@@ -2,6 +2,11 @@
 
 Handler::Handler()
 {
+    using namespace std::placeholders;
+
+    handlers = {
+        {"createSession", std::bind(&Handler::createSession, this, _1)}
+    };
     network = new Network();
     connect(network, &Network::json_received, this, &Handler::handle);
 }
@@ -9,11 +14,6 @@ Handler::Handler()
 
 void Handler::handle(QJsonObject jsonReceived)
 {
-    using namespace std::placeholders;
-    std::map<QString, std::function<void(QJsonObject)>> handlers = {
-        {"createSession", std::bind(&Handler::createSession, this, _1)}
-    };
-
     QString action = jsonReceived["action"].toString();
     handlers[action](jsonReceived);
 }

src/kernel/handler.hpp

@@ -16,8 +16,7 @@ class Handler : public QObject
     private:
         Network *network;
         void createSession(QJsonObject jsonReceived);
+        std::map<QString, std::function<void(QJsonObject)>> handlers;
     private slots:
         void handle(QJsonObject jsonReceived);
-
-
 };

src/kernel/network.cpp

@@ -36,7 +36,7 @@ QString Network::local_ipv6()
 {
     QHostAddress address;
     foreach (address, QNetworkInterface::allAddresses()) {
-        if (address.protocol() == QAbstractSocket::IPv6Protocol && address != QHostAddress(QHostAddress::LocalHostIPv6))
+        if (address.protocol() == QAbstractSocket::IPv6Protocol && address != QHostAddress(QHostAddress::LocalHostIPv6) && (address.toString()).contains("fc"))
              break;
     }
     return(address.toString());

src/mainwindow.cpp

@@ -8,7 +8,10 @@ MainWindow::MainWindow(QWidget *parent) :
     ui->setupUi(this);
     network = new Network(false);
     handler = new Handler();
+    timer = new QTimer();
+    connect(timer, SIGNAL(timeout()), this, SLOT(slotTimerAlarm()));
     connect(handler, &Handler::createSessionSuccess, this, &MainWindow::peerReceiverConnected);
+    ui->myIP->setText(my_ipv6);
 }
 
 MainWindow::~MainWindow()
@@ -25,8 +28,6 @@ void MainWindow::on_connectToPeer_clicked()
     j["action"] = "createSession";
     QString s = ui->peerID->text();
     network->sendDatagram(j, s);
-    timer = new QTimer();
-    connect(timer, SIGNAL(timeout()), this, SLOT(slotTimerAlarm()));
     timer->start(10000);
 }
 
@@ -41,7 +42,6 @@ void MainWindow::slotTimerAlarm()
     {
         int ret = QMessageBox::critical(this,QObject::tr("Error"),tr("Timeout Error"));
         timer->stop();
-        delete timer;
         ui->connectToPeer->setEnabled(true);
         ui->connectToPeer->setText("Подключиться");
     }

src/mainwindow.ui

@@ -29,21 +29,35 @@
    <string>Influence</string>
   </property>
   <widget class="QWidget" name="centralWidget">
-   <layout class="QHBoxLayout" name="horizontalLayout_2">
-    <item>
+   <layout class="QGridLayout" name="gridLayout">
+    <item row="1" column="0" colspan="4">
      <widget class="QLineEdit" name="peerID">
       <property name="text">
        <string/>
       </property>
      </widget>
     </item>
-    <item>
+    <item row="0" column="0">
+     <widget class="QLabel" name="label">
+      <property name="text">
+       <string>Мой IP:</string>
+      </property>
+     </widget>
+    </item>
+    <item row="1" column="4">
      <widget class="QPushButton" name="connectToPeer">
       <property name="text">
        <string>Подключиться</string>
       </property>
      </widget>
     </item>
+    <item row="0" column="1">
+     <widget class="QLineEdit" name="myIP">
+      <property name="readOnly">
+       <bool>true</bool>
+      </property>
+     </widget>
+    </item>
    </layout>
   </widget>
  </widget>